Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 916-533-5 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with point 7.8, Column 2 (Specific rules for adaptation from Column 1), Annex VII of Regulation (EC) No. 1907/2006 (REACH), this study does not need to be conducted if the substance has a high surface activity. The surface tension of the substance was determined to be 29.8 mN/m, and based on an assessment of the emulsification properties and chemical structure, the substance was determined to be surface active. Testing for this endpoint can therefore be omitted, since the substance is a surface active material and testing is not technically feasible.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -0.571
Additional information
It was not possible to determine the log Pow of the registered substance due to its surface activity, however the log Pow of the structural analogue, sodium N-myristoyl-L-glutamate, was available.
Butler (2008) has been provided as supporting data, where the partition coefficient of the test material was determined in a study using the shake-flask method. Under the conditions of the test, the partition coefficient was determined to be in the range of 8.50 x 10-2to 0.261, log Pow, -1.08 to -0.571.
The study was performed under GLP conditions and in line with the standardised guideline EU Method A.8, and was assigned a reliability score of 2 in accordance with Klimisch (1997).
Based on the structural similarities between the two substances the registered substance is also expected to have a similar log Pow. The log Pow was reported to be -0.571 based on a worst case estimate.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
